Title:
遷移金属の回収方法および遷移金属の回収装置
Document Type and Number:
Japanese Patent JP6652518
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a recovery method for transition metal recovering the transition metal from a fuel cell without dismantling the fuel cell, and a recovery system for the transition metal.SOLUTION: A recovery method for transition metal of one embodiment includes: a step of supplying dissolving solution to a fuel electrode passage inlet supplying fuel gas to a fuel cell or a fuel electrode passage outlet exhausting the fuel gas from the fuel cell and immersing a fuel electrode into the dissolving solution; a step of supplying the dissolving solution to an air electrode passage inlet supplying air to the fuel cell or an air electrode passage outlet exhausting the air from the fuel cell and immersing an air electrode into the dissolving solution; a step of applying a voltage to the fuel electrode and the air electrode and dissolving the transition metal contained in the fuel electrode and the air electrode into the dissolving solution; a step of discharging the dissolving solution containing the transition metal from the fuel electrode passage outlet or the fuel electrode passage inlet; and a step of discharging the dissolving solution containing the transition metal from the air electrode passage outlet or the air electrode passage inlet.SELECTED DRAWING: Figure 2
Inventors:
Motoshige Yagyu
Kanamura Shohei
Masato Okamura
Kanamura Shohei
Masato Okamura
Application Number:
JP2017031955A
Publication Date:
February 26, 2020
Filing Date:
February 23, 2017
Export Citation:
Assignee:
Toshiba Corporation
Toshiba Energy Systems Co., Ltd.
Toshiba Energy Systems Co., Ltd.
International Classes:
C22B7/00; C22B3/04; C22B11/00; C22B23/00; H01M8/00; H01M8/04
Domestic Patent References:
| JP2008527628A | ||||
| JP60184647A | ||||
| JP2008027700A | ||||
| JP2017008340A |
Attorney, Agent or Firm:
Patent Business Corporation Sakura International Patent Office